Touch Panel Inoperative - Brother MFC-J5335DW Service Manual

4.6.4 Touch panel inoperative

Step
1 Panel flat cable connection
failure
2 Touch panel flat cable
connection failure
3 Adjustment slippage of the
touch panel
4 LCD PCB defective
5 Touch panel defective
6 Control panel ASSY defective
7 Main PCB defective
Cause
Reconnect the panel flat cable.
Reconnect the touch panel flat cable.
Perform the touch panel adjustment. (refer to
Chapter 5, Section 1.3.29 "Adjustment of Touch
Panel (Maintenance mode
Replace the LCD PCB.
Replace the touch panel.
Replace the control panel ASSY.
Replace the main PCB.
2-75
Solution
78)")
Confidential